/*
 * The MIT License
 *
 * Copyright 2015 chronosinfo.com.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * Autor John Vanderson M Lima
 */
package com.chronos.pafecf.modelo;

import com.chronos.pafecf.db.AcessoDB;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

/**
 *
 * @author usuario
 */
public class GenericDao {

    protected GenericDao() {
    }
    
    private AcessoDB conectar = new AcessoDB();

    protected Connection getConnection() {
        return conectar.conectarDB();
    }
    protected void desconectarDB(){
        conectar.desconectar();
    }
    protected Statement getStatement() throws SQLException {
        return getConnection().createStatement();
    }

    protected PreparedStatement getStatement(String st) throws SQLException {
        return getConnection().prepareStatement(st);
    }

    protected ResultSet execultQuery(String query, Object... params) throws SQLException {
        PreparedStatement ps = getStatement(query);
        for (int i = 0; i < params.length; i++) {
            ps.setObject(i + 1, params[i]);
        }
        return ps.executeQuery();
    }

    protected int execultCommand(String query, Object... params) throws SQLException {
        PreparedStatement ps = getStatement(query);
        for (int i = 0; i < params.length; i++) {
            ps.setObject(i + 1, params[i]);
        }
        int result = ps.executeUpdate();
        ps.close();
        return result;
    }

    protected Integer getNextId(String tabela) throws SQLException {
        String query = "select max(id" + tabela + ") from " + tabela;
        System.out.println(query);
        ResultSet rs = execultQuery(query);
        rs.next();
        Object result = rs.getObject(1);
        if (result == null) {
            rs.close();
            return 1;
        } else {
            return ((Integer) result + 1);
        }
    }

}
